Rectangular luminaire



FIG. 1 is a bottom plan view of a luminaire;

FIG. 2 is first end view thereof;

FIG. 3 is a first side elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is the other end view thereof;

FIG. 6 is the other side elevation view thereof; and,

FIG. 7 is a bottom perspective view thereof.

The broken lines shown on the drawings depict environment only and form no part of the claimed design. 

The ornamental design for a rectangular luminaire, as shown and described. 